<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
    <meta name="viewport"
          content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
    <meta name="format-detection" content="telephone=no, email=no"/>
    <meta name="apple-mobile-web-app-capable" content="yes"/>
    <meta name="apple-mobile-web-app-status-bar-style" content="black"/>
    <script src="bundle.js"></script>
</head>
<body>


<div id="box1">
    <button class="active">按钮1</button>
    <button>按钮2</button>
    <button>按钮3</button>
    <br>
    <div class="active">1111111111</div>
    <div>222222222</div>
    <div>3333333333</div>
</div>
<div id="box2">
    <button class="active">按钮1</button>
    <button>按钮2</button>
    <button>按钮3</button>
    <div class="active">内容1</div>
    <div>内容2</div>
    <div>内容3</div>
</div>
<div id="box3">
    <button class="active">按钮1</button>
    <button>按钮2</button>
    <button>按钮3</button>
    <div class="active">内容1</div>
    <div>内容2</div>
    <div>内容3</div>
    <button id="leftBtn">左</button>
    <button id="rightBtn">右</button>
</div>

</body>
</html>